(19)

(11)

EP 4 171 782 A1

(12)

(43) Date of publication: 03.05.2023 Bulletin 2023/18 (21) Application number: 21834440.6 (22) Date of filing: 30.06.2021

(51) International Patent Classification (IPC):  B01D 29/62(2006.01) B01D 69/06(2006.01) B01D 61/38(2006.01) (52) Cooperative Patent Classification (CPC): B01D 69/06; B01D 61/38; B01D 61/147; B01D 61/22; B01D 67/0088; B01D 2311/14 (86) International application number: PCT/US2021/039956 (87) International publication number: WO 2022/006311 (06.01.2022 Gazette 2022/01)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 30.06.2020 US 202063046671 P (71) Applicant: University of Maine System Board of Trustees Orono, ME 04469 (US)	(72) Inventors: HOWELL, Caitlin ORONO, Maine 04469 (US) REGAN, Daniel ORONO, Maine 04469 (US) (74) Representative: Carpmaels & Ransford LLP  One Southampton Row London WC1B 5HA London WC1B 5HA (GB)